.
Metalfilm Resistor
MELF 0207
►
Resistance ranges, tolerances and TC’s
TC (x10 /°
C)
± 5
± 10
± 15
± 25
± 50
-6
0.05%
50R
50R
50R
50R
50R
-
-
-
-
-
250K
510K
510K
510K
510K
0.10%
10R
5R
5R
5R
5R
-
-
-
-
-
500K
1M
1M5
1M5
2M
0.25%
10R
5R
5R
5R
3R
-
-
-
-
-
500K
1M
2M
3M
3M
0.50%
10R
5R
5R
2R
2R
-
-
-
-
-
500K
1M
2M
5M
5M
1%
-
-
1R - 2M
1R - 5M
1R - 5M
All values within the resistance range are available.
►
Ratings by CECC 40 101-806
Thermal resistance R
th
Limited element voltage
Rated dissipation
Insulation voltage
Insulation resistance
Temp. characteristics
Voltage coefficient
TC
≥
(0
±
25x10 )
-6
TC
≤
(0
±
15x10 )
-6
►
Dimensions
max. 140 K/W
≅
300 V
0.4 W
0.6 W
>
350 V
10
>
10
Ω
- 25° bis 125°C
C
- 10° bis 85°
C
C
-6
<
0,5 x 10 / V
P
70
(ϑ
o
= 125 °
C)
P
40
(ϑ
o
= 125 °
C)
►
Characteristics
Climatic category
Low air pressure
Temp. rise at rated dissipation
Current noise
Non-linearity
Weight (100 pcs.)
Cleaning solvents
Taping
Tape width
step
pcs. Per reel. 180
∅
Specific Products
Low inductive “N“
Preloaded “V“
Sorting
TC 50
0.5%
1.0%
2R - 1K0
1R - 1K2
55 / 125 / 56
min 1,0 kPa
ϑr ≤
55K
s. p. 2
s. p. 2
ca. 5 g
For the removal of flux can be used: ethanol, methanol, isopropanol,
propanol, butanol and water; reaction time max. 5 minutes
IEC 286 part3
12 mm
4 mm
max. 2000
trimming by a special cut, resistance range is limited
The resistors are conditioned 100 h with rated power or rated voltage.
A sorting into groups depending on tolerances and temperature
characteristics (into the next better group) is available.
© by
electronic
sensor + resistor
GmbH
Siemensstr. 10
·
D – 85521 Ottobrunn
contact: www.esr.info
·
sales@esr.info
·
Tel. +49 (0) 89 611 808-0
·
Fax +49 (0) 89 611 808-11
(100601)
.
Metalfilm Resistor
MELF 0207
►
Tests
4.13
4.17
4.31
4.31
4.18
4.19
4.23
4.24
Test
Overload
Solderability
Substrat bending test
Shear test
Soldering resistance to heat
Rapid change of temp.
Climatic sequence
Damp heat, steady
Conditions
5 s, 2.5 x U
rat
or 2 x U
max
2 s, 230°
C
10x, 2mm
45N
260
±
5° 10s
C,
-65° 155° 5x
C,
C,
Requirements
∆R ≤±
(0.1%R+0.01Ω)
≥95%
with solder wetting
∆R ≤±
(0.1%R+0.01Ω)
∆R ≤±
(0.1%R+0.01Ω)
∆R ≤±
(0.1%R+0.01Ω)
∆R ≤±
(0.1%R+0.01Ω)
∆R ≤±
(0.5%R+0.05Ω)
∆R ≤±
(0.5%R+0.05Ω)
∆R ≤±
(0.5%R+0.05Ω)
∆R ≤±
(1%R+0.05Ω)
40° 93% r.H., 56 d
C,
U
rat
oder U
max
1000 h
4.25
Endurance at 70 °
C
U
rat
oder U
max
8000 h
Section numbers of test and performance requirements refer to IEC 115-1.
Test methods refer to IEC 60068-2. See also DIN EN 140401-803.
The statements regarding the requirements are based on the stability class 0.5.
Reference measurements are to be performed at 20° (see EN 140 000).At low ohmic values the distance of the
C
measuring clip has to be considered (24±2mm). Less then 1k-Ohm should always be measurd with the 4-wires-
method.
►
Rating curves
►
Order examples
MELF 0207
17K64
0,05%
TC 15
──┬──
type
──┬──
rated resistance
──┬──
tolerance
──┬──
TC
© by
electronic
sensor + resistor
GmbH
Siemensstr. 10
·
D – 85521 Ottobrunn
contact: www.esr.info
·
sales@esr.info
·
Tel. +49 (0) 89 611 808-0
·
Fax +49 (0) 89 611 808-11
(100601)
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